Fastener



(No Model.)

W. B. H. DOWSE.

FASTBNBR.

Patented Apr. 27, 1897.

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WILLIAM B. H. DOWSE, OF NEWTON, MASSACHUSETTS, ASSIGNOR TO THE CONSOLIDATED FASTENER COMPANY, OF PORTLAND, MAINE.

FASTENER.

SPECIFICATION forming part of Letters Patent No. 581,392, dated April 27, 1897.

I Application filed August 20, 1896. Serial No. 603,299. (No model.)

To LZZ whom it may concern.: 4

Be it known that I, WILLIAM B. H. DowsE, a citizen of the United States, residing at Newton, inthe county of Middlesex and Commonwealth of Massachusetts, have invented a new and useful Improvement in Fasteners, of which the following is a full speciiication.

My invention relates to that class of separable fasteners consisting of a stud or male member and a socket or female member; and it consists of certain improvements in resilient socket members, hereinafter set forth in detail, reference being had to the accompanying drawings, wherein- Figure 1 is a sectional view of the two parts of my socket member before they are riveted together on the material to which the fastener is attached. Fig. 2 is a horizontal section on the line 2 2, Fig. 1. Fig. 3 is a plan of the under side of my socket member. Fig. 4 is a sectional view of my completed fastener attached to any material and showing the stud member (shown in elevation) snapped into the socket member. Fig. 5 is an enlarged plan of my spring; and Fig. 6 is a vertical section of same on the line 6 6, Fig. 5.

My socket member S, Fig. l,` consists of two parts-a cap A and socket-piece E. -The cap A consists of three parts-shell B, anvil C, and centrally-perforated collet D, closed together at their outer edges, as shown. The socket-piece E consists of three parts-eyelet F, collet G, and spring H. The eyelet F has the attaching tubular eyelet f, the enlarged stud-receiving chamber f', the spring-retaining chamber f2, and the horizontal flange f3, over which is closed the outer edge of the collet G.

The collet G -is centrally perforated with the hole g and confines within the chamber f2 the spring H. When the stud and socket members are together, as shown in Fig. 4, the head of the stud is within the chamber f', while its neck is engaged by the spring H, the hole g in the collet G being of suiiicient size to allow the stud to pass through easily.

My spring H, I make of a wire bentinto the shape shown in Figs. 5 and 6, having six scallops arranged about a common center- 5o three long outwardly-convex centering-scallops h h h, alternated by three short outwardly-concave scallops or stud-engaging points h' h h. The three long scallops 7L h 7L are so arranged that they form segments of a circumference of such a diameter that the spring will lie loosely within the chamber f2 of the socket-piece E. The short scallops It' h' 7L are so arranged that they will lie about the edge of the hole g in the collet G, projecting beyond its edge slightly, as shown in Fig. 3, so that as the stud member is pressed into the socket member these scallops or grippingpoints 7L h 71.' will spring open to letthe head through and afterward close about and engage with its neck, as shown in Fig. 4. Further, I flatten the gripping-points 7?/ h 71,', as shown in Figs. 5 and 6, and also depress them slightly, leaving the centering-points round in cross-section and also in a higher plane than the gripping-points. Thus the spring H is concave upwardl and when closed into the eyelet-piece E it is in a measure flattened out, the centering-points bearing against the upper wall of the chamber f2 and the gripping-point sprung down against the edge of the hole g.

I arrange my spring so that the joint or slit h2 comes at the end of one of the centeringscallops, as shown in Fig. 5, for by this means I iind that the spring works more easily and does not bind on the neck of the stud.

I claiml. In a stud-and-socket fastener, a socketchamber provided with a scalloped wire spring having the stud-engaging parts h h h projecting into the socket and the centering parts 71, h h, all arranged and operated substantially as described.

2. In a stud-and-socket fastener, a socketchamber provided with a scalloped wire spring having the stud-engaging parts h' h h' and the centering parts h h h, the said studengaging parts being attened, substantially as described.

8. In a stud-and-socket fastener, a socketchamber provided with a scalloped wire spring having the stud-engaging parts h h h and the centering parts h h h, the said spring being provided with a slit h2, or discontinuous, substantially as described.

IOO

4. In a stud-and-soeket fastener, a soeket- In Witness whereof I have hereunto set my chamber provided with a scalloped Wire hand. springhzwng the stud-engaging parts 7L 7L 7L and the centeling parts h h h, the said spring WM' B H' DOVSE being eonezwed so that the said gripping parts IVtnesses:

are in a lower plane than the said centering FRANK G. PARKER,

parts, substantially as described. GEO. G. HOLMES. 

